Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a resposta de 1997-98 quando o 2003-04 mostra grp?
 ###Tabelas: CREATE TABLE singles:_21_10_titles_11_runner-ups (singles:_21_10_titles_11_runner-ups_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Date VARCHAR, Tournament VARCHAR, Surface VARCHAR, Opponent VARCHAR, Score VARCHAR) CREATE TABLE 2000s:_incorporation (2000s:_incorporation_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Competition VARCHAR, Round VARCHAR, Opponent VARCHAR, Series VARCHAR) CREATE TABLE pga_tour_wins_12 (pga_tour_wins_12_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Tournament VARCHAR, Winning score VARCHAR, Margin of victory VARCHAR, Runner(s)-up VARCHAR) CREATE TABLE women's_doubles_performance_timeline (women's_doubles_performance_timeline_id AUTO_INCREMENT PRIMARY KEY, Tournament VARCHAR, 1988 VARCHAR, 1989 VARCHAR, 1990 VARCHAR, 1991 VARCHAR, 1992 VARCHAR, 1993 VARCHAR, 1994 VARCHAR, 1995 VARCHAR, 1996 VARCHAR, 1997 VARCHAR, 1998 VARCHAR) CREATE TABLE competition_timeline (competition_timeline_id AUTO_INCREMENT PRIMARY KEY, Competition VARCHAR, 1970–71 VARCHAR, 1971–72 VARCHAR, 1972–73 VARCHAR, 1973–74 VARCHAR, 1974–75 VARCHAR, 1975–76 VARCHAR, 1976–77 VARCHAR, 1977–78 VARCHAR, 1978–79 VARCHAR, 1979–80 VARCHAR, 1980–81 VARCHAR, 1981–82 VARCHAR, 1982–83 VARCHAR, 1983–84 VARCHAR, 1984–85 VARCHAR, 1985–86 VARCHAR, 1986–87 VARCHAR, 1987–88 VARCHAR, 1988–89 VARCHAR, 1989–90 VARCHAR, 1990–91 VARCHAR, 1991–92 VARCHAR, 1992–93 VARCHAR, 1993–94 VARCHAR, 1994–95 VARCHAR, 1995–96 VARCHAR, 1996–97 VARCHAR, 1997–98 VARCHAR, 1998–99 VARCHAR, 1999–00 VARCHAR, 2000–01 VARCHAR, 2001–02 VARCHAR, 2002–03 VARCHAR, 2003–04 VARCHAR, 2004–05 VARCHAR, 2005–06 VARCHAR, 2006–07 VARCHAR, 2007–08 VARCHAR, 2008–09 VARCHAR, 2009–10 VARCHAR, 2010–11 VARCHAR, 2011–12 VARCHAR)  
SELECT 1997–98 FROM competition_timeline WHERE 2003–04 = grp